Nutrition in Canola

Magnesium

Constraint – Magnesium

Plant use

Magnesium is an essential component of chlorophyll and is required for the transport of phosphorus

Magnesium deficiencies are rare and normally transient

Damage

No yield penalties have yet been recorded

Management

A soil test or a plant tissue test should be used to confirm magnesium deficiency. A dolomite fertiliser can then be applied in appropriate quantities. Limiting the application of nitrogenous or potassium fertilisers to required amounts, rather than over supplying, may also increase the availability of magnesium.